Discover and read the best of Twitter Threads about #CAdrought
Most recents (3)
New work co-led by @xingyhuang and me on the rising risk of a California #megaflood due to #ClimateChange is out today in @ScienceAdvances! This paper also describes the new #ARkStorm2 scenarios in detail, & will be the basis for ongoing work. (Thread:1/n) science.org/doi/10.1126/sc…
For context: the work and findings presented here represent the first phase of the broader #ARkStorm2 project, a multi-year, cross-institutional effort involving multiple @UofCalifornia campuses, @DRIScience, @USGS, @CA_DWR, & @NCAR_Science. (2/n) science.org/doi/10.1126/sc…
In this work, we develop a pair of plausible extreme, month-long winter storm sequences in California--one from the recent historical climate, and one from a much warmer future climate. These sequences involve a multi-week series of successive #AtmosphericRiver storms. (3/n) 
Enfin une « bonne » nouvelle en provenance des États-Unis 🇺🇸 : La #sécheresse en partie résorbée en #Californie après plusieurs épisodes d’#intempéries ces dernières semaines. L’État de l'Ouest #américain était en proie à une sécheresse historique à l’automne dernier. #Thread 🧵
📈Contexte : Les #USA contigus ont connu un été météorologique (Juin-Août) 2021 record 🌡, l’un des plus chaud jamais enregistré, à égalité avec l’été 1936. Sur la période Janvier-Août 2021, les températures sur tout l’ouest américain ont été bien au-dessus des normales. @NOAA
Zoom 🔎 sur l’Ouest américain : Tout simplement l’été météorologique le plus chaud depuis le début des relevés en 1895. Près de 3°C au-dessus de la normale 🥵 (1901-2000). Du jamais vu !
Source : @NOAA
Source : @NOAA
California, on statewide basis, is now experiencing its worst drought in observational record going back to late 1800s--narrowly beating out peak of last drought in 2014-15 (as measured by PDSI, a metric that takes into account both precip & temperature). #CAwx #CAfire #CAwater
There is a clear trend toward increasing aridity in California--and yet little trend in mean precipitation. How can this be? A very strong warming trend due to #ClimateChange means same the amount of water falling from sky just doesn't go as far as it used to. #CAwx #CAwater
We explored this phenomena in research published in 2015 (finding that rising temps are the main factor behind increasing CA drought severity):
pnas.org/content/112/13…
and 2018 (increasing "precip whiplash" despite little change in mean):
nature.com/articles/s4155…
#CAwater #CAwx
pnas.org/content/112/13…
and 2018 (increasing "precip whiplash" despite little change in mean):
nature.com/articles/s4155…
#CAwater #CAwx
